<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\Log;
use Ramsey\Uuid\Uuid;

class Order extends Model
{
    //退款状态
    const REFUND_STATUS_PENDING = 'pending';
    const REFUND_STATUS_APPLIED = 'applied';
    const REFUND_STATUS_PROCESSING = 'processing';
    const REFUND_STATUS_SUCCESS = 'success';
    const REFUND_STATUS_FAILED = 'failed';

    //物流状态
    const SHIP_STATUS_PENDING = 'pending';
    const SHIP_STATUS_DELIVERED = 'delivered';
    const SHIP_STATUS_RECEIVED = 'received';

    public static $refundStatusMap = [
        self::REFUND_STATUS_PENDING => '未退款',
        self::REFUND_STATUS_APPLIED => '已申请退款',
        self::REFUND_STATUS_PROCESSING => '退款中',
        self::REFUND_STATUS_SUCCESS => '退款成功',
        self::REFUND_STATUS_FAILED => '退款失败'
    ];

    public static $shipStatusMap = [
        self::SHIP_STATUS_PENDING => '未发货',
        self::SHIP_STATUS_DELIVERED => '已发货',
        self::SHIP_STATUS_RECEIVED => '已收货'
    ];

    protected $fillable = [
        'no',
        'address',
        'total_amount',
        'remark',
        'paid_at',
        'payment_no',
        'refund_status',
        'refund_no',
        'closed',
        'reviewed',
        'ship_status',
        'ship_data',
        'extra'
    ];

    protected $casts = [
        'closed' => 'boolean',
        'reviewed' => 'boolean',
        'address' => 'json',
        'ship_data' => 'json',
        'extra' => 'json'
    ];

    protected $dates = [
        'paid_at'
    ];

    protected static function boot()
    {
        parent::boot();
        static::creating(function ($model) {
            if (!$model->no) {
                $model->no = static::findAvailableNo();
                //如果失败则终止创建订单
                if(!$model->no){
                    return false;
                }
            }
        });
    }

    public function user()
    {
        return $this->belongsTo(User::class);
    }

    public function items()
    {
        return $this->hasMany(OrderItem::class);
    }


    public function couponCode()
    {
        return $this->belongsTo(CouponCode::class);
    }
    
    public static function findAvailableNo()
    {
        $prefix = date('YmdHis');
        for ($i = 0; $i < 10; $i++) {
            //随机生成6位数字
            $no = $prefix.str_pad(random_int(0,999999),6,'0',STR_PAD_LEFT);
            //判断是否已经存在
            if(!static::query()->where('no',$no)->exists()){
                return $no;
            }
        }
        Log::warning(sprintf('find order no failed'));

        return false;
    }

    public static function getAvailableRefundNo(){
        do{
            $no = Uuid::uuid4()->getHex();
        }while(self::query()->where('refund_no',$no)->exists());
        return $no;
    }
}
